A Method to Control the Transverse Corner Cracks on a Continuous Casting Slab by Combining Microstructure Analysis with Numerical Simulation of the Slab Temperature Field

2018 ◽  
Vol 89 (5) ◽  
pp. 1700480 ◽  
Author(s):  
Xiaogang Yang ◽  
Lifeng Zhang ◽  
Chaobin Lai ◽  
Shusen Li ◽  
Ming Li ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Temperature Field ◽  
Continuous Casting ◽  
Microstructure Analysis ◽  
Continuous Casting Slab ◽  
Slab Temperature ◽  
Corner Cracks

Formation and Control of Transverse Corner Cracks in the Continuous Casting Slab of a Microalloyed Steel

2021 ◽  
pp. 2000649
Author(s):  
Yadong Wang ◽  
Qiang Ren ◽  
Lifeng Zhang ◽  
Xiaogang Yang ◽  
Wen Yang ◽  
...  
Keyword(s):  
Continuous Casting ◽  
Microalloyed Steel ◽  
Continuous Casting Slab ◽  
Corner Cracks ◽  
And Control

scholarly journals Mathematical Heat Transfer Model Research for the Improvement of Continuous Casting Slab Temperature

2005 ◽  
Vol 45 (9) ◽  
pp. 1291-1296 ◽  
Author(s):  
Hongming WANG ◽  
Guirong LI ◽  
Yucheng LEI ◽  
Yutao ZHAO ◽  
Qixun DAI ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Continuous Casting ◽  
Heat Transfer Model ◽  
Transfer Model ◽  
Continuous Casting Slab ◽  
Model Research ◽  
Slab Temperature

Quality Control of Casting Slab for 510L Steel

2011 ◽  
Vol 117-119 ◽  
pp. 756-759
Author(s):  
Hong Pan ◽  
Guo Rong Wu ◽  
Zhi Qiang Li
Keyword(s):  
Continuous Casting ◽  
Working Condition ◽  
Steel Plate ◽  
Rolled Sheet ◽  
Mold Powder ◽  
Continuous Casting Slab ◽  
Narrow Side ◽  
Corner Cracks ◽  
Hot Rolled

Slab quality affects the quality of hot rolled sheet significantly. There were serious transverse corner cracks on continuous casting slab of 510L steel plate in Panzhihua Steel before. Based on this, some effective countermeasures are put forward, such as the optimization of ratio of heat flux on narrow side and broad side of casting slab and mold powder, as well as the stabilization of casting speed and working condition of caster. With these countermeasures, transverse corner cracks on continuous casting slab have been significantly reduced, and the lines and peeling defects on hot rolled sheet reduce from 30% to 0.

Numerical Simulation of Induction Heating Process of Continuous Casting Slab

2008 ◽  
Vol 575-578 ◽  
pp. 37-42 ◽  
Author(s):  
Hao Liu ◽  
Li Liang Chen ◽  
Jian Xin Zhou
Keyword(s):  
Finite Difference ◽  
Continuous Casting ◽  
Induction Heating ◽  
Mathematic Model ◽  
Heating Process ◽  
Power Intensity ◽  
Continuous Casting Slab ◽  
Steel Technology ◽  
Slab Temperature ◽  
Enhance Efficiency

Compared with traditional blazing furnace, the Continuous Casting-Direct Rolling is an advanced manufacturing steel technology, which can reduce energy waste, decrease pollution and enhance efficiency. The characteristics of steels during induction heating are complex, the change of material properties with temperature makes exact analysis methods very difficult to implement. Therefore, a powerful computer aided numerical tool (i.e., finite difference analysis) is selected to numerically model the induction heating process in this paper. The mathematic model coupling with electromagnetic field and thermal field was established, and it was solved by finite difference method (FDM), thus the slab temperature distribution and its variation with time were obtained, and the characteristics in whole induction heating process were studied. To validate the program feasible, the results were evaluated and compared with experiment results, which showed that the simulation results are reliable and effective. The skin effect in heating process from the two results was studied and demonstrated, the temperature change caused by different parameters such as the induced power intensity and the corner radian were also presented, which indicate that the slab temperature can be heated uniformly through adjusting these parameters, thus the continuous casting slab can meet the rolling requirement.

Mechanism of Macrosegregation Formation in Continuous Casting Slab: A Numerical Simulation Study

2017 ◽  
Vol 48 (6) ◽  
pp. 3120-3131 ◽  
Author(s):  
Dongbin Jiang ◽  
Weiling Wang ◽  
Sen Luo ◽  
Cheng Ji ◽  
Miaoyong Zhu
Keyword(s):  
Numerical Simulation ◽  
Continuous Casting ◽  
Simulation Study ◽  
Continuous Casting Slab

Prediction of the Position on Solidification End Point of Continuous Caster

2011 ◽  
Vol 421 ◽  
pp. 67-70
Author(s):  
Ting Sheng Tu ◽  
Hong Liang Wang ◽  
Zuo Sheng Lei ◽  
Zhong Ming Ren
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Continuous Casting ◽  
Casting Speed ◽  
Continuous Caster ◽  
Shooting Technique ◽  
Soft Reduction ◽  
End Point ◽  
Continuous Casting Slab ◽  
Business Software

Solidification heat transfer in continuous casting slab was simulated with the business software CALCOSOFT. The position on solidification end point which obviously effect on soft reduction was predicted and verified by nail—shooting technique. It is shown from the numerical simulation that the casting speed affected the position significantly: the solidification end point moved backward 3 or 4m as the casting speed increased by 0.2m /min, while the casting temperature has little effect that the solidification end point moved backward only 0.2 or 0.25mm as it increased 6°C or 7°C.

Improvement of the Accuracy of High Temperature Slab Weight in Continuous Casting

2007 ◽  
Vol 26-28 ◽  
pp. 547-550
Author(s):  
Seong Yeon Kim ◽  
Yeong Seon Park ◽  
Jong Min Park
Keyword(s):  
High Temperature ◽  
Continuous Casting ◽  
Surface Temperature ◽  
Slab Surface ◽  
Slab Width ◽  
Continuous Casting Slab ◽  
Contraction Ratio ◽  
Weight Calculation ◽  
Slab Temperature ◽  
Measured Length

In continuous casting, slab weight is normally calculated just after torch cutting of slab using the process parameters and measured length. Because the weight is dependent on the slab temperature as well as slab width, the conventional method has the possibility of inaccuracy in calculated slab weight where contraction ratio of hot-slab was used in weight calculation. In this study, the slab width and surface temperature were measured using pyrometer simultaneously and used for determining the slab dimension and high temperature density. Slab density was formulated as a function of slab surface temperature and slab dimension. The accuracy of slab weight could be improved using this new measured method, and the slab could be cut with good matching weight with ordered-weight.

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